Invalid JSON for AWS Cloudformation

Were you aware that the JSON contained in github for the AWS Cloudformation template "MatlabProductionServer_Linux_R2019a_New.template" is invalid?

The "Fn::Join" statement (specific to AWS CF) must be surrounded by {} to make it an object.

This occurs at lines 145, 399 and 467

FWIW - I made the changes make them objects and they loaded in CF without issue.

Regards,

Mark